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【单选题】
设有以下结构体类型: struct st { char name [8]; int num; float s[4]; } student[50]; 并且结构体数组student中的元素都已有值 ,若要将这些元素写到硬盘文件中,以下不正确的形式是( )。A.
fwrite( student ,sizeof(struct st),50,fp);
B.
fwrite( student ,50*sizeof(struct st),1,fp);
C.
fwrite( student ,25*sizeof(struct st),25,fp);
D.
for (i=0;i<50 ;i++) fwrite(student+i,sizeof(struct st),1,fp);
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【简答题】In every cultivated language there are two great classes of words which, taken together, comprise the whole vocabulary.First, there are those words 1 which we become acquainted in daily conversation, ...
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【单选题】The main idea of the passage is that ______.
A.
the two kinds of words, popular and learned words, are both important in a cultivated language
B.
it is easy to learn popular words in a language
C.
we must make great efforts to learn learned words
D.
learned words are more important than popular words
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